Re: Using BFD to get debugging information from .elf files

[Rick Mann <rmann at latencyzero dot com>]

On Feb 28, 2007, at 14:03 , Alan Modra wrote:

> You're missing bfd_check_format (bfdRef, bfd_object)

Hmm. How bizarre. I had bfd_archive in the call to bfd_check_format 
(), so I changed it to bfd_object, and now it works.

When I searched the archives before, I found someone with a similar  
question, and a similar response. I looked up the call in the online  
docs to try to understand it better.

So I added the call to bfd_check_format(), I *think* with bfd_object,  
and it still failed. I then experimented with various calls to  
bfd_check_format and bfd_check_format_matches(), all to no avail.  
What I posted in my email was a hand-edited version of the last  
attempt, with bfd_check_format_matches().

The docs don't seem to indicate that there is a side-effect to  
calling bfd_check_format. Can you elaborate on what that side-effect  
is? It works with the call, and not without it, even though I take no  
action other than to print the result. I can call it twice, with both  
bfd_archive and bfd_object, in either order, and it succeeds.

Thanks!

--
Rick